Searches for new physics using the tt ¯ invariant mass distribution in pp collisions at s √ =8 TeV

Open access
Author
CMS Collaboration
Chatrchyan, Serguei
Bachmair, Felix
Bäni, Lukas
Bianchini, Lorenzo
Bortignon, Pierluigi
Buchmann, Marco A.
Casal, Bruno
Chanon, Nicolas
Deisher, Amanda
Dissertori, Günther
Dittmar, Michael
Donegà, Mauro
Dünser, Marc
Eller, Paul
Freudenreich, Klaus
Grab, Christoph
Hits, Dmitry
Lecomte, Pierre
Lustermann, Werner
Mangano, Boris
Marini, Alessandro C.
Martinez Ruiz del Arbol, Pablo
Meister, Daniel
Mohr, Niklas
Moortgat, Filip
Nägeli, Christoph
Nef, Pascal
Nessi-Tedaldi, Francesca
Pandolfi, Francesco
Pape, Luc
Pauss, Felicitas
Peruzzi, Marco
Quittnat, Milena
Ronga, Frédéric J.
Rossini, Marco
Sala, Leonardo
Sanchez, Ann-Karin
Starodumov, Andrey
Stieger, Benjamin
Takahashi, Maiko
Tauscher, Ludwig
Thea, Alessandro
Theofilatos, Konstantinos
Treille, Daniel
Urscheler, Christina
Wallny, Rainer
Weber, H.A.
et al.
Date
2013-11Type
- Journal Article
Abstract
Searches for anomalous top quark-antiquark production are presented, based on pp collisions at √s=8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb−1, were collected with the CMS detector at the LHC. The observed t¯t invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements Show more
Permanent link
https://doi.org/10.3929/ethz-b-000079562Publication status
publishedJournal / series
Physical Review LettersVolume
Pages
Publisher
American Physical SocietyOrganisational unit
03381 - Pauss, Felicitas (emeritus)03593 - Dissertori, Günther
03904 - Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
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